Feeding the birds

Last Saturday, my husband and I went to visit some friends. We sat on the balcony and after a few minutes two birds came.   At this time I was eating a pear. I approached and tried to feed them. At first they didn't come close but after a few seconds they came back and started to eat. Then more than ten birds came to the balcony. You can't imagine their sounds! My friends told me that I caused a problem for her!